IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8282 Comm: syz-executor.4 Not tainted 4.19.132-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:hsr_check_carrier_and_operstate+0x3f/0x810 net/hsr/hsr_device.c:116 Code: fa be 04 00 00 00 48 89 ef e8 fd a8 ff ff 49 89 c6 48 83 c0 10 48 89 c2 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 64 07 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffff888045e86cb8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888051678400 RCX: ffffc9000e521000 RDX: 0000000000000002 RSI: ffffffff872f82b7 RDI: 0000000000000004 RBP: ffff888051093140 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff89a46040 FS: 00007f730c1b9700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6609f7d000 CR3: 00000000a7c3d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hsr_netdev_notify+0x270/0x9f0 net/hsr/hsr_main.c:51 notifier_call_chain+0xc0/0x230 kernel/notifier.c:93 netdev_state_change net/core/dev.c:1349 [inline] netdev_state_change+0x100/0x130 net/core/dev.c:1342 do_setlink+0x2c8a/0x3540 net/core/rtnetlink.c:2661 rtnl_group_changelink net/core/rtnetlink.c:2925 [inline] rtnl_newlink+0xbc0/0x15a0 net/core/rtnetlink.c:3083 rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4777 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2455 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6bb/0xc40 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:632 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2115 __sys_sendmsg net/socket.c:2153 [inline] __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2160 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45cba9 Code: 8d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f730c1b8c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000504460 RCX: 000000000045cba9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000009 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a8d R14: 00000000004cd624 R15: 00007f730c1b96d4 Modules linked in: ---[ end trace d08348ea120b93b4 ]--- SELinux: unrecognized netlink message: protocol=0 nlmsg_type=39 sclass=netlink_route_socket pid=8310 comm=syz-executor.4 RIP: 0010:hsr_check_carrier_and_operstate+0x3f/0x810 net/hsr/hsr_device.c:116 Code: fa be 04 00 00 00 48 89 ef e8 fd a8 ff ff 49 89 c6 48 83 c0 10 48 89 c2 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 64 07 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b RSP: 0018:ffff888045e86cb8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888051678400 RCX: ffffc9000e521000 RDX: 0000000000000002 RSI: ffffffff872f82b7 RDI: 0000000000000004 RBP: ffff888051093140 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff89a46040 FS: 00007f730c1b9700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6609f81008 CR3: 00000000a7c3d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400